Yes. The same decision tree is used.
A great explanation is in "Cisco LAN Switching" by Clark and Hamilton. Cisco
Press
> -----Original Message-----
> From: Miller, Nathan - BSC [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, February 06, 2001 8:09 AM
> To: [EMAIL PROTECTED]
> Subject: Spanning Tree Question - Root Port Selection
>
>
> I have been looking for a while for further documentation of
> the process by
> which a switch selects its root port. Most of the books that I have
> searched for this information say something similar to the
> following quote
> from a CCO page: "A bridge's root port is the port through
> which the root
> bridge can be reached with the least aggregate path cost, a
> value that is
> called the root path cost." My problem is that they all seem
> to stop there.
> My question is this. If the root path cost is the same on
> multiple switch
> ports, how does STA determine which is the root port? Does
> it follow the
> same course as it would when selecting a designated port
> (root bridge, root
> path cost, sender ID, sender port).
> Many thanks for your thoughts.
> Nathan Miller
>
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